Category 1
What is anything that has mass and takes up space.
Matter
What is a measure of the amount of matter in an object?
Mass
What is a measure of the gravitational force exerted on an object; its value can change with the location of the object in the universe?
Weight
What is the amount of space that an object takes up, or occupies?
Volume
What is a characteristic of a substance that does not involve a chemical change, such as density, color, or hardness?
Physical Property
What is The state of matter that has a definite volume but not a definite shape?
Liquid
What is the ratio of the mass of a substance to the volume of the substance?
Density
What is a change of matter from one form to another without a change in chemical properties?
Physical Change
What is a property of matter that describes a substance's ability to participate in chemical reactions?
Chemical Property
What is the smallest unit of an element that maintains the properties of that element?
Atom
What is a change that occurs when one or more substances change into entirely new substances with different properties?
Chemical Change
What is a form of matter that does not have a definite volume or shape?
Gas
What is a substance made up of atoms or ions of two or more different elements joined by chemical bonds?
Compound
What is a combination of two or more substances that are not chemically combined?
Mixture
What is a sample of matter, either a single element or a single compound, that has definite chemical and physical properties?
Pure Substance
What is the change of state from a liquid to a gas?
Evaporation
What is the change of state from a liquid to a solid?
Freezing
What is the state of matter in which the volume and shape of a substance are fixed?
Solid
What is a force that pulls things towards Earth?
Gravity
What is the process in which material is laid down?
Deposition
What is the change of state from a solid to a liquid?
Melting
What is the change of state from a gas to a liquid?
Condensation
What is the change of state from a liquid to a gas that occurs at a specific temperature?
Boiling
What is the process in which a solid changes directly into a gas?
Sublimation
What is the law that states that mass cannot be created or destroyed in ordinary chemical and physical changes?
Law Of Conservation Of Mass
What describes something that has a uniform structure or composition throughout?
Homogeneous
What is a substance that cannot be separated or broken down into simpler substances by chemical means; all atoms of an element have the same atomic number?
Element
What is a chemical reaction that requires energy input, usually as heat?
Endothermic Reaction
What is a chemical reaction in which energy is released to the surroundings, usually as heat?
Exothermic Reaction
What describes something that does not have a uniform structure or composition throughout?
Heterogeneous